I don't know if I am overlooking things, but in my class here we study three different books but we use one more often than the other two.
Thus it would come in handy to be able to adjust the relative amount of vocab Skritter is adding from all the vocabulary lists.
For instance, in my case I would want to have like a 60%/20%/20% proportion between my three lists.
I know it's probably not the most pressing feature needed, since I can manually pause lists. But it would still be nice to have in the future if it doesn't require too much work.
Cheers